Question

If 2.29 x 19.79 = 45.3191, then without actual multiplication the value of 0.0229 x 1979 is?

Answer 1

The answer remains the same (45.3191)

Explanation:

0.029 is 100 times smaller than 2.29 but 1979 is 100 times bigger than 19.79. The 100’s cancel each other out so the answer remains the same.